Nut and bolt lock.



PATENTED SEPT. 2'7, 1904.

R. M. TULLER.

NUT AND BOLT LOCK.

APPLIOATION FILED 511F129, 1903.

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Patented September 27, 1904.

PATENT OEEIcE.

ROMANE M. TULLER, OF DENVER, COLORADO, ASSIGNOR OF ONE-HALF TO WILLIAMSCHEIDENBERGER, OF DENVER, COLORADO.

NUT AND BOLT LOCK- SPEGIFIGATION forming part of Letters Patent No.770,945, dated September 27, 1904 Application filed September 29, 1903.Serial No. 175,023.

lb all whont it may concern.-

Be it known that I, RoMANE M. T LLER, residing at Denver, in the countyof Denver and State of Colorado, have invented a new and Improved Nutand Bolt Look, of which the following is a specification.

This invention relates more particularly to that type of nut-locks inwhich a plurality of locking-nuts are fitted upon a threaded bolt to andadapted to interlock or be held into tight engagement with each other orwith the bolt.

In the class of nut-locks referred to it has been usual to provide abolt having right and left threaded portions to receive a pair of cor- 5respondingly-threaded nuts and asupplemental means for interlocking thenuts with each other to prevent the turning of the said nuts upon theirrespective bolt-threads after being forced home to their lockedposition.

My invention in its generic nature comprehends a pair of locking-nuts oflike constructionthat is, having their boltapertures threaded on thesame pitch, whereby to readily screw onto a bolt threaded in one direc-5 tion onlywhereby they can be easily applied to any of the ordinarytypes of bolts whose threaded portion has threads of one pitch and thethreaded end of the same diameter throughout its length, the said nutsbeing also pro- 3 vided with opposing faces of like constructionarranged to cooperate with the locking means slidably mounted on thebolt adapted to engage with the said opposing nut-faces to lock the twonuts together to prevent either of the said nuts working loose orturning off the In its more subordinate features my invention consistsin the novel construction of nut and bolt means hereinafter fullydescribed,

4 and particularly pointed out in the appended claim, reference beinghad to the accompanying drawings, in which Figure 1 is a perspectiveview showing my invention as applied for use.

section thereof, showing the first nut in posi tion. Fig. 3 is a similarview, the second nut and washer being shown in position. Fig. 4 is asimilar view, the washer being upset to engage the grooves in the nut.Fig. 5 is a de- Fig. 2 is a cross- (No model.)

tail perspective view of the bolt and the nuts 5 detached. Fig. 6 is adetail cross-section on the line 6 6 of Fig. 2. Fig. 7 is a detail viewhereinafter specifically referred to.

Referring now to the accompanying drawings, in which like numerals andletters of reference indicate like parts in all of the figures,

1 designates the bolt, which, as shown in the drawings, may be oftheordinary construction and which I have shown as applied for securingthe rail R and the fish-plates R together. The fastening or securing nut2 may also be of the ordinary construction, with the exception that inone face 2 thereof I form a series of grooves or cut-away portions 2semiconically shaped in longitudinal section 5 and which extend from theedge face 2 toward the central threaded bolt-receiving aperture 2 forabout one-half or two-thirds the distance. After screwing thesecuring-nut 2 tightly in position, as shown in Fig. 4:, with 7 itssmooth face 2 against the fish-plate R, I place a Washer 3 upon the boltagainst the groove-face 2 of the nut 2, and the said washer 3 preferablyhas in practice a radius equal to the radius of the outer circleinclosing the geometric figure of the nut, so as to have a portion 3 ofthe washer above the face 2 (see Fig. 3) for the purpose presentlyexplained. Next I screw the jam-nut 4, which is precisely of the sameconstruction and of practically the same size as the securing-nut 2, onthe bolt 1, and the said jam-nut is screwed on with its groove-face 4against the washer 3, the jam and securing nuts being preferably both ofthe same size. The parts are now in 5 the position shown in Fig. 3. Ithen take a punch of the same thickness as the washer and about one-halfinch wide and after placing it on the periphery of the washer (seedotted lines, Fig. 6) I strike it with a suitable 9 hammer, and therebyforce the washer portion 46" into the grooves 2 4 as shown in Fig. 4:,the washer then serving to hold the two nuts 2 and 4 tightly lockedtogether, and hence they will be prevented from turning off the bolt.Instead of forcing the washer into the grooves in the manner shown inFigs. 1 and 4 I may force the washer into alternate grooves on differentfaces, as shown in detail in Fig. 7, if I find it more convenient to doso.

From the foregoing it will be seen that even when my lock is in use onbolts for holding wood or other material subject to shrinkage or wherethe bolt is likely to be kept in motion the nuts will remain in theirlocked position and not loosen or work off the bolts. Again, it will beseen that in the application of my invention no special form of bolt isrequired; but any ordinary form of bolt now in common use may be used inmy improved nut-lock means.

While I have shown my invention as applied for use on railroad-rails andwhile it is more especially adapted for such use, yet I desire itunderstood that I may use the same wherever the ordinary bolt and nutnow in common use are adapted to be used.

I am aware that bolt and nut locks have heretofore been provided inwhich a pair of nuts having their opposing faces mounted to cooperatewith a device specially designed to engage with the two nuts and thespeciallydesigned bolt and in which each nut has an especial arrangementof threads for engaging the cooperative portions of the bolt. Myinvention, so far as I know, difierentiates from what has heretoforebeen provided in lock-nut devices of the character stated in thepeculiar cooperative arrangement of the two nuts of like constructionadapted to independently thread onto the bolt and when locked with eachother to firmly bind or grip their respective bolt portions to preventtheir becoming loose or turning off under the ordinary conditions andyet be capable of being readily turned off in unison under a lever orwrench action.

Having thus described my invention, what I claim, and desire to secure,by Letters Patent, is

An improvement in nut-locks, comprising in combination with a bolt of auniform diameter and having its end uniformly threaded in one directiononly, of a pair of nuts of eX- actly the same construction, and eachhaving a threaded aperture to cooperate with the threaded end of thebolt, said nuts each having their opposite edges notched radially and atan angle to the axial line of their bolt-apertures, a circular metallicdisk arranged between said nuts, said disk being of greater diameterthan the diameter of the outer circle containing the outline of the nut,to permit the edge of the disk to project beyond the nut-faces and to beupset into the grooves of the nuts, said nuts and disk being so arrangedthat when the nuts have been secured into position they will be joinedtogether and held from movement with respect to each other for thepurposes specified.

ROMANE M. TULLER.

Witnesses:

THOMAS HARRisoN, A. C. BANTOW.

